HXGW-12 Outdoor High Voltage Ring Main Unit
The HXGW-12 series outdoor high-voltage ring main unit is an outdoor high-voltage electrical equipment with a rated voltage of 12kV and a rated current of 630A, used for connecting and tapping power cables.
This product is widely used in urban industrial communities, residential areas, commercial centers, mining areas, airports, railways, wind power stations, switch stations, and distribution networks of large enterprises such as steel, petroleum, chemical, cement, and other occasions. It is particularly suitable for urban road and power grid renovation projects, which can greatly save electrical equipment and cable investment and improve power supply reliability.
The product complies with standards such as IEC60298 "AC Metal Enclosed Switchgear and Control Equipment" and GB3906 "3-35kV AC Metal Enclosed Switchgear".
Main technical parameters
| Rated voltage | 12kV |
| Rated current | 630A |
| Rated short-time withstand current | 20kA/3s |
| Rated peak withstand current | 50kA |
| Power frequency withstand voltage (effective value) | 42kV/1min |
| Lightning impulse withstand voltage | 75kV |
| Lightning impulse fracture withstand voltage | 85kV |
| Secondary circuit power frequency withstand voltage | 2kV/1min |
| Partial discharge | <10PC |
| Rated cable charging breaking current | 10A |
| Rated closed-loop breaking current | 630A |
| Mechanical life | 5000/2000次 |
| Shell protection level | IP4 |
| Cable section for matching | ≤300mm² |



